Methods for handling hooks and items

Abstract

The hook comprises: a main board, a first sliding plate and a second sliding plate, a first base plate and a second base plate, a pair of hooks, a flywheel, and a rack. The first and second sliding plates are fixed to each other and are configured to suspend the drone under wireless control, allowing them to slide vertically relative to the main board while clamping it. The first and second base plates are also fixed to each other and are configured to slide vertically relative to the main board while clamping it. The pair of hooks are rotatably connected to the first and second base plates respectively. The flywheel is rotatably fixed to the main board. The rack engages with the flywheel and is fixed to the first sliding plate.

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